US6122554A - Electrode assembly for electrotherapy comprising an adherent layer and an absorbent component for supplying water to said adherent layer - Google Patents

Electrode assembly for electrotherapy comprising an adherent layer and an absorbent component for supplying water to said adherent layer Download PDF

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Publication number
US6122554A
US6122554A US09/120,404 US12040498A US6122554A US 6122554 A US6122554 A US 6122554A US 12040498 A US12040498 A US 12040498A US 6122554 A US6122554 A US 6122554A
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United States
Prior art keywords
absorbent component
adherent
water
hydrogel layer
component
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Expired - Lifetime
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US09/120,404
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English (en)
Inventor
Herve Coral
Patrick Hebert
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SPORT-ELEC SA
Sport Elec SA
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Sport Elec SA
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Assigned to SPORT-ELEC S.A. reassignment SPORT-ELEC S.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CORAL, HERVE, HERBERT, PATRICK
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/0404—Electrodes for external use
    • A61N1/0472—Structure-related aspects
    • A61N1/0492—Patch electrodes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/0404—Electrodes for external use
    • A61N1/0408—Use-related aspects
    • A61N1/0452—Specially adapted for transcutaneous muscle stimulation [TMS]

Definitions

  • the present invention pertains to an electrode assembly for electrotherapy which is intended for use with a DC current generator offering divided or biphase emission.
  • Electrotherapy consists of use of electricity as a means of treatment, usually for providing stimulation of muscles, or, in the instance of ionotherapy, for enabling ionized active substances to enter the body.
  • Electrode assemblies which are used by therapists are usually supplied in the form of a component which contains an absorbent material and means of securing straps or similar items, thereby allowing encircling of the body so as to ensure attachment of the aforementioned component.
  • Electrode assemblies which are suitable for generators intended for use in the home usually consist of a flexible conductive component wherein the surface which is intended to come into contact with the skin is covered with a layer composed of a material which on the one hand allows the current to flow and on the other hand provides adherence to the skin.
  • the material covering the conductive component usually consists of a hydrogel which requires regeneration by supplying of water prior to use in each instance.
  • a protective sheet covering the hydrogel layer must be removed, and the hydrogel layer must then be moistened with water, whereupon it is necessary to wait for a certain period of time for allowing complete absorption of the water by the hydrogel.
  • the hydrogel in order for adhesive capability and low resistance to be maintained, the hydrogel must be maintained at a constant hydrometric level. Nevertheless, when the hydrogel is in contact with the skin and on account of increased heat created by transmission of the current, drying occurs.
  • the intent of the present invention is to offer an electrode assembly which shall allow the various disadvantages to be overcome. Furthermore, it shall be suitable for use in ionotherapy.
  • An electrode assembly designed in accordance with the invention contains a conductive component covered with a layer of an adherent material of the hydrogel type, and it is essentially characterized by the fact that it contains items allowing a supply of water to said adherent material during use of the respective assembly.
  • a component composed of an absorbent material which is intended to be impregnated with water is situated between the conductor and the layer of adherent material of the hydrogel type, thereby forming a means of storing water.
  • the adherent material of the hydrogel type draws water out of the absorbent component, so that it shall remain at a substantially constant hydrometric level.
  • the layer of adherent material of the hydrogel type contains at least one opening situated to adjacent the absorbent component, thereby allowing said absorbent component to be impregnated with water prior to use.
  • the layer of adherent material of the hydrogel type is covered with a protective sheet which contains openings opposite the opening or openings situated within said layer, thereby permitting filling of the absorbent component with water prior to use, without a need for removal of said protective sheet.
  • this assembly includes a component composed of an absorbent material constituting a means of storing water, and this component is situated next to the conductor and is fitted into an area provided within the layer of adherent material of the hydrogel type.
  • the layer of adherent material of the hydrogel type is covered with a protective layer containing an opening opposite the area where the absorbent component is situated. This opening allows replacement of the absorbent component and/or supplying of water, without a need for removal of said protective sheet.
  • an ionized active substance is added to the water intended to impregnate the absorbent component.
  • FIG. 1 represents an enlarged perspective view of an embodiment of an electrode assembly in accordance with the invention
  • FIG. 2 represents an enlarged perspective view of another embodiment of an electrode assembly.
  • an electrode assembly in accordance with the invention includes a conductive component (1); which is preferably composed of carbon, with a lead (11) intended for connection with a current generator (not shown) placed in contact with the upper surface (10) of said conductive component.
  • the upper surface (10) and the conducting lead (11) are covered with a piece (12) of insulating material which can be produced from a material of the non-woven type.
  • a component (2) consisting of an absorbent material of the felt type, for example, is positioned against the bottom surface of the conductive component (1), which is supported by a layer (3) of a material which adheres to the skin, such as a hydrogel.
  • the layer identified as (3) is covered with a protective sheet (4) possessing larger dimensions in order to facilitate removal.
  • the aforementioned layer (3) contains three openings (30) situated adjacent to the absorbent component (2), whereas the protective sheet (4) also contains three openings (40) situated opposite the openings identified as (30), in such a manner that the absorbent component shall be accessible through the respective openings, (30) and (40).
  • the absorbent component (2) is to be impregnated with water, and this step can be completed easily by placing the electrode assembly beneath a tap. Then, by capillary action, the adherent material of the hydrogel type draws water out of the absorbent component, thereby allowing regeneration. Lastly, the protective sheet is removed, and the electrode assembly can be placed upon the skin.
  • the adherent material of the hydrogel type continues to draw water out of the absorbent component (2), in such a manner that drying does not occur, while the hydrometric level shall remain substantially constant.
  • the electrode assembly in accordance with the invention therefore requires fewer handling procedures for being positioned, and these procedures are easier.
  • this assembly likewise includes a conductive component (5) and a lead (50) covered with a means of insulation (6), a layer (7) composed of an adherent material of the hydrogel type, an absorbent component (8), and a protective sheet (9).
  • the layer (7) of adherent material of the hydrogel type contains an opening (70) where the absorbent component (8) possessing a complementary shape is to be positioned, while the protective sheet (9) contains an opening (90) situated opposite the opening identified as (70).
  • the absorbent component (8) shall be in contact with the conductive component (5), and, by means of its edges, it shall be in contact with the layer (7) of adherent material of the hydrogel type, in order to allow water to be supplied for this layer.
  • An electrode assembly designed in accordance with this second embodiment of the invention can be used in the same way as the first embodiment. On the other hand, it allows replacement of the absorbent component (8) by another of said components.
  • This configuration provides an advantage during performance of ionotherapy. Indeed, during successive ionization procedures, it is important that electrodes used for distributing an ionized product should not be reused for distributing a product with a different polarity. Furthermore, the possibility of removing and replacing the absorbent component identified as (8) allows use of components intended for one-time use.
  • these absorbent components can be packaged in a form where they are pre-impregnated with an ionized active product and are ready for use, so as to eliminate errors in terms of levels of ionized substances, with the result that the active product shall be perfectly measured, whereby performing of ionotherapy by the general public can be allowed.
  • a text concerning use of the absorbent component can be placed upon the respective packaging.
  • the aforementioned text can therefore include the nature of the product, locations for applying electrodes, the type of current which must be used, and the period of exposure.
  • the electrode assembly designed in accordance with the present invention can be used not only by the general public, but also by therapists.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Electrotherapy Devices (AREA)
US09/120,404 1998-06-03 1998-07-22 Electrode assembly for electrotherapy comprising an adherent layer and an absorbent component for supplying water to said adherent layer Expired - Lifetime US6122554A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP98440117 1998-06-03
EP98440117A EP0962233A1 (fr) 1998-06-03 1998-06-03 Dispositif d'electrode pour electrotherapie
CA002277361A CA2277361A1 (fr) 1998-06-03 1999-07-08 Dispositif d'electrode pour electrotherapie

Publications (1)

Publication Number Publication Date
US6122554A true US6122554A (en) 2000-09-19

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US09/120,404 Expired - Lifetime US6122554A (en) 1998-06-03 1998-07-22 Electrode assembly for electrotherapy comprising an adherent layer and an absorbent component for supplying water to said adherent layer

Country Status (4)

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US (1) US6122554A (ja)
EP (1) EP0962233A1 (ja)
JP (1) JP2000005323A (ja)
CA (1) CA2277361A1 (ja)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100114238A1 (en) * 2008-10-30 2010-05-06 Philip Edward Muccio Integration of functional electrical stimulation in prosthetic sockets, liners, and garments for improved amputee care and performance
US8197844B2 (en) 2007-06-08 2012-06-12 Activatek, Inc. Active electrode for transdermal medicament administration
US8862223B2 (en) 2008-01-18 2014-10-14 Activatek, Inc. Active transdermal medicament patch and circuit board for same
CN106178258A (zh) * 2016-04-25 2016-12-07 Bj全球有限公司 低频肌肉运动刺激仪
CN110721400A (zh) * 2019-01-04 2020-01-24 广州一康医疗设备实业有限公司 一种手臂用的肌肉刺激装置
USD904629S1 (en) 2018-08-16 2020-12-08 Spr Therapeutics, Inc. Electrical stimulator
US11382550B2 (en) 2018-02-28 2022-07-12 Medtronic Xomed, Inc. Nerve monitoring and/or stimulation electrode assemblies
US11412986B2 (en) * 2017-10-06 2022-08-16 Medtronic Xomed, Inc. Methods of recording responses of and stimulating bioelectric tissue
USD964935S1 (en) 2018-08-16 2022-09-27 Spr Therapeutics, Inc. Adapter and connector for electrical stimulation

Citations (11)

* Cited by examiner, † Cited by third party
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US3518984A (en) * 1967-10-12 1970-07-07 Univ Johns Hopkins Packaged diagnostic electrode device
US4319579A (en) * 1979-06-21 1982-03-16 Ndm Corporation Reusable medical electrode having disposable electrolyte carrier
US4522211A (en) * 1979-12-06 1985-06-11 C. R. Bard, Inc. Medical electrode construction
US4653501A (en) * 1986-04-17 1987-03-31 Baxter Travenol Laboratories, Inc. Medical electrode with reusable conductor
US4700710A (en) * 1985-03-12 1987-10-20 Murray Electronics Associates Limited Partnership Apertured adhesively applied body electrode apparatus and method
US4827939A (en) * 1985-07-18 1989-05-09 Baxter International Inc. Medical electrode with reusable conductor and method of manufacture
US5158537A (en) * 1990-10-29 1992-10-27 Alza Corporation Iontophoretic delivery device and method of hydrating same
US5310404A (en) * 1992-06-01 1994-05-10 Alza Corporation Iontophoretic delivery device and method of hydrating same
US5385543A (en) * 1990-10-29 1995-01-31 Alza Corporation Iontophoretic delivery device and method of hydrating same
US5543098A (en) * 1991-03-11 1996-08-06 Alza Corporation Iontophoretic delivery device and method of making same
EP0774272A1 (en) * 1994-06-17 1997-05-21 Hisamitsu Pharmaceutical Co. Inc. Electrode for iontophoresis and device using the same

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3518984A (en) * 1967-10-12 1970-07-07 Univ Johns Hopkins Packaged diagnostic electrode device
US4319579A (en) * 1979-06-21 1982-03-16 Ndm Corporation Reusable medical electrode having disposable electrolyte carrier
US4522211A (en) * 1979-12-06 1985-06-11 C. R. Bard, Inc. Medical electrode construction
US4700710A (en) * 1985-03-12 1987-10-20 Murray Electronics Associates Limited Partnership Apertured adhesively applied body electrode apparatus and method
US4827939A (en) * 1985-07-18 1989-05-09 Baxter International Inc. Medical electrode with reusable conductor and method of manufacture
US4653501A (en) * 1986-04-17 1987-03-31 Baxter Travenol Laboratories, Inc. Medical electrode with reusable conductor
US5158537A (en) * 1990-10-29 1992-10-27 Alza Corporation Iontophoretic delivery device and method of hydrating same
US5385543A (en) * 1990-10-29 1995-01-31 Alza Corporation Iontophoretic delivery device and method of hydrating same
US5543098A (en) * 1991-03-11 1996-08-06 Alza Corporation Iontophoretic delivery device and method of making same
US5310404A (en) * 1992-06-01 1994-05-10 Alza Corporation Iontophoretic delivery device and method of hydrating same
EP0774272A1 (en) * 1994-06-17 1997-05-21 Hisamitsu Pharmaceutical Co. Inc. Electrode for iontophoresis and device using the same

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8197844B2 (en) 2007-06-08 2012-06-12 Activatek, Inc. Active electrode for transdermal medicament administration
US8862223B2 (en) 2008-01-18 2014-10-14 Activatek, Inc. Active transdermal medicament patch and circuit board for same
US20100114238A1 (en) * 2008-10-30 2010-05-06 Philip Edward Muccio Integration of functional electrical stimulation in prosthetic sockets, liners, and garments for improved amputee care and performance
CN106178258A (zh) * 2016-04-25 2016-12-07 Bj全球有限公司 低频肌肉运动刺激仪
CN106178258B (zh) * 2016-04-25 2018-08-21 Bj全球有限公司 低频肌肉运动刺激仪
US11412986B2 (en) * 2017-10-06 2022-08-16 Medtronic Xomed, Inc. Methods of recording responses of and stimulating bioelectric tissue
US11672487B2 (en) 2017-10-06 2023-06-13 Medtronic Xomed, Inc. Pledget stimulation and recording electrode assemblies
US11382550B2 (en) 2018-02-28 2022-07-12 Medtronic Xomed, Inc. Nerve monitoring and/or stimulation electrode assemblies
US11426109B2 (en) 2018-02-28 2022-08-30 Medtronic Xomed, Inc. Nerve monitoring and/or stimulation electrode assemblies
US11918363B2 (en) 2018-02-28 2024-03-05 Medtronic Xomed, Inc. Nerve monitoring and/or stimulation electrode assemblies
USD904629S1 (en) 2018-08-16 2020-12-08 Spr Therapeutics, Inc. Electrical stimulator
USD964935S1 (en) 2018-08-16 2022-09-27 Spr Therapeutics, Inc. Adapter and connector for electrical stimulation
USD1000619S1 (en) 2018-08-16 2023-10-03 Spr Therapeutics, Inc. Electrical stimulator
CN110721400B (zh) * 2019-01-04 2022-08-09 广州一康医疗设备实业有限公司 一种手臂用的肌肉刺激装置
CN110721400A (zh) * 2019-01-04 2020-01-24 广州一康医疗设备实业有限公司 一种手臂用的肌肉刺激装置

Also Published As

Publication number Publication date
CA2277361A1 (fr) 2001-01-08
JP2000005323A (ja) 2000-01-11
EP0962233A1 (fr) 1999-12-08

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